Let's start with the reason for my purchase. I needed something to hold my phone or Honda Ruckus so I could use it as a speedometer and GPS mount. This got a great review, so let's try it. Add / Amazon Prime to the map and bam! After 2 days, it attaches well to the handlebars, but its design allows it to be used with a variety of grips. There's a main side clip that holds pretty well, and the rubber backing that you attach to the corners keeps it in place. I rolled and the wind didn't even make it move. There are two large rubber backs and one smaller one. Also comes with an extra thumbscrew. If he can stay, I will. My moped can stay on the bike. Actually I will try it on my bike (pedals) too. Excellent, but I'm also looking forward to using it a lot. As always, I will update in the future to rate the quality of this product.